<!-- 底部 -->
<div class="footer container-fluid">
    <input type="checkbox" class="checkbox"/>

    <div class="row">
        <div class="shopping_car empty col-xs-8">
            <div class="row">
                <!-- 购物车图标 -->
                <div class="shopping_car_icon col-xs-3">
                    <!-- 总数量 -->
                    <div class="food_amount">23</div>
                </div>
                <!-- 金额 -->
                <div class="shopping_car_amount col-xs-8">￥345</div>
                <div class="shopping_car_amount_empty col-xs-8">空空的~</div>
            </div>
        </div>
        <div class="buy col-xs-4">
            下单
        </div>
    </div>
</div>

<!-- 返回按钮 -->
<div class="back_btn" onclick="history.go(-1);"></div>